Flask



C. N. CORYELL.

FLASK.

APPLICATION FILED JAN-26,1921.

Patented Nov. 22,

a pocket flask is made diflicult UNITED STATES CHARLES NEWTON CORYELL, 0F MAMARONECK, NEW YORK.

FLASK.

Application filed January 26, 1921.

To all whom it may concern Be it known that 1, CHARLES X. CORYELL, residing at Mamaroneck, in the county of lVestchester, State of New York, have invented certain new and useful Improvements in Flasks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a container for liquids, usually potable, and more particularly to a pocket flask, the cap of which, when removed may serve as a cup.

It is common practice to drink directly from pocket flasks because usually there is no drinking vemel at hand into which the draft may first be poured. This is at best an unsanitary and inconvenient method of using the flask, but on the other hand to carry a special drinking cup, although sanitary, is even more inconvenient. To combine a cup with a pocket flask in some simple and unobtrusive manner would solve the difficulty, and this is broadly the object of the present invention.

There are two separable parts to the ordinary flask, the body or flask proper and the cap. Heretofore the flask proper has been employed as the drinking vessel, or in other words, there has been no proper drinking vessel. According to the present invention the cap is made to perform this dual function and is both cap and cup, thus promoting sanitation and convenience without adding a third element to the combination. But the problem of designing such a cap for by'the peculiar shape of such flasks. It would be a relatively easy matter to provide a longnecked bottle with a combination cap and cup, for the cylindrical cup-forming extension of the cap would merely fit over or into the neck of the bottle. A pocket flask, however, is not permitted a long outwardly extending neck, for one so made would be awkward and unsalable. The sides of the cup should therefore lie within the flask, lip innermost to subtract little from the capacity. The most obvious arrangement satisfying these conditions is one wherein the cup simply passes into the ordinary mouth of the flask. But in most cases this would restrict the size of the cup to that of a mere pencil and to use such a cup would be most unsatisfying. Moreover, the liquid dis- Specification of Letters Patent.

Patented N ov. 22, 1921. Serial No. 439,991.

placed when such a cup is introduced into the flask would be forced out between the neck and the cup. It therefore becomes necessary to redesign the mouth and neck of the flask in such a manner that a sizable cup-cap may pass through it and lie, rim innermost largely within the interior of the flask, and in such a manner that the possibility of leakage when the cup is inserted and removed is lessened. This then is the more specific object of the invention. At the same time the flask is made practically leakproof when closed and the inner extension of the mouth or neck is designed to drain th; flask at the lowest point in its convex s1 e.

The invention will be more clearly understood after a study of the accompanying drawing, which discloses a preferred embodiment thereof and in which Figure l is a vertical section through the flask taken along line 11 of Fig. 2 and showing the combination cap and cup in position within the modified neck and the flask; Fig. 2 is a view looking downwardly upon the top of flask with the cap in position; Fig. 3 is a section through the combination cap and cup itself; Fig. 4 is a transverse vertical section through the upper end of the flask showing the modified neck with the cap removed; and Fig. 5 is an elevation of the flask on a smaller scale.

The flask shown in this drawing is the ordinary flat metallic flask designed with one convex and one concave side whereb it is adapted readily to fit the contour of the hip. The edges of such a flask are also rounded to facilitate easy insertion into and removal from the pocket. The body portion or flask proper is designated in the drawing by the reference numeral 1. It is evident that in order to provide such a flask with a mouth large enough to include a cup of fair capacity, it would be necessary to provide a depending neck portion which would extend beyond the upper rounded faces of the flask and become substantially tangent with the sides of the flask at some point where a maximum thickness has been reached. This is clearly shown in Fig. 5. This depending neck is designated by the reference numeral 2 and comprises an outer cylindrical member 3 and an inner frustoconical member 4 which contacts with and is secured to the outer member at its inner edge 5. These two members define between them proper.

an annular space 6, the cross sectional area of which increases slightly toward the mouth of the flask. The outer end of the member 1 extends slightly beyond the outer member 3 and is provided with screw threads 7. This threaded portion of the member 4 defines the outlet orifice 8 of the flask.

The combination cup and cap shown most clearly in Fig. 3 comprises a cap proper 9' having a depending threaded portion 10 and a cylindrical extension 11 which fits around and is secured to this threaded portion 10 and abuts against a shoulder 13 on the cap A layer of cork 12 or other suitable yielding material is fitted within the cap 9.

The external diameter of the cylindrical or cup-forming extension 11 is such that the latter may readily fit within the outer member 3 of the neck, as is clearly shown in Fig. 1. At the same time the threaded portion 10 engages the threaded end of the frustoconical part of the neck. When the cap is in place and tightly seated the inner end of member 4 bears against the cork insert 12 making a leak-proof joint, while at the same time, the cup llfits snugly between the converging walls of members 3 and 4, and the shoulder 12. of the cup bears. against the outer end of member 3. In this way a substantially leak-proof closure is assured, for should any liquid pass by the cork 12 it would be practically impossible for it to pass around the inner edge of the cup 11 which contactsso tightly with the walls of the neck. And even passing this joint it would be necessary for the liquid to work itself outwardly between the closely fitting cup and neck and pass the shoulder 12 before it could finally emergeto' wet the clothing of the person carrying the flask; Leakage is also prevented during insertion and removal of the cup. Were a cup introduced into the open mouth of an ordinary flask filled with liquid, even though introduced lip foremost, the cup and its contained air would displace a part of the liquid and force it out of the flask between the cup and the mouth. With a flask provided with a depending neck such as member 3, this leakage is minimized, and with a'neck made up of two concentric members such as 8- and 4:, such leakage is. practically impossible. :The risk of leakage when the cup is suddenly drawn out is also lessened. 1 i

,The inner member 41 of the neck is designed: to lie flush with the inner faces of the flask walls, as shownin Fig. 4. This point of tangency is, on the convex side, at the lowest point in the flask. The result is that the last drop of liquids may be readily drained.

The above described flask is thus provided with a cap which when inposition over the. mouth of theflask? is not essentially unlike. the: ordinary caps now in general use.

When removed, however, it serves admirably, as a small cup and makes it unnecessary to drink the liquid from the flask itself. The use of this modified cap does not necessitate the use of a long and cumbersome neck, nor does the fact that the cup lies within the body of the flask subtract materially from the capacity of the latter. At the same time the flask is made practically leak-proof and the inwardly extending neck is designed to tap the flask at its lowest point and thus successfully drain it.

Although one specific embodiment ot'the invention has been shown and described, it is, of course, to be understood that applicant is not necessarily limited to these precise details of construction, as modifications may be made by those skilled in the art without departing from the spirit of the invention. The invention has also been described inconnection with a pocket flask, but it is clear that it is not necessarily limited to a flask designed to be carried within a pocket. The combination cup and cap might well be used in connection with any flask used under conditions making a conservation of space desirable.

I claim: Y

1. A flask comprising the combination of a body, "a neck of substantial length lying largely within the body and a removable cap provided with acup forming extension fitting within the neck and contacting therewith for substantially the entire length of the extension.

2. A flask comprising the combination of a body, a substantially cylindrical neck of substantial length lying largely within the body, the diameter of this neck being substantially equal to the greatest thickness of the flask, and a removable cap provided with a cylindrical extension 'fittingwithin the neck, the 'ne'ck'and the extension being of substantially the same length.

3. A flask comprising the combination of a body, aneck lying largely within the body and consisting of outer and inner substantially concentric members having an annular space between them, and. a cap provided with a cup-shaped extension lying within this annular space. V r

1-. A flask comprising the combination of a body, a substantially cylindrical neck lying largely within the body and consisting of an outer cylindrical" member and an inner 'frusto-conical member, the inner member being supported by the outer at its inner end, and'a removable capprovided with a cylindrical extension which fits into the annular space between the outer and inner members. a

of an outer cylindrical member andan inner frusto-conical member, the inner member being supported by the outer at its inner end, and a removable cap provided with a cylindrical extension which fits into the annular space between the outer and inner members and threadedly engages the latter.

6. A convex pocket flask comprising the combination of a body, a neck lying largely within the body and consisting of outer and inner substantially concentric members hav. ing an annular space between them, said inner member terminating in the outlet orifice of the flask and lying substantially tangent with the flask at its point of greatest convexity, and a removable cap provided with a cup-shaped extension lying within the annular space between outer and inner members.

7. A flask comprising the combination of a body, a substantially cylindrical neck lying largely within the body and consisting of an outer cylindrical member and an inner frusto-conical member, the inner member being supported by the outer at its inner end, and a removable cap provided with a cylindrical extension which fits into the annular space betweenthe outer and inner members, making tight contact with both, the cap proper making contact with the outer ends of the neck.

8. A pocket flask having a convex side, comprising the combination of a body, a substantially cylindrical neck lying largely within the body and tangent with the flask at the lowest point in its convex side.

In testimony whereof I affix my signature.

CHARLES NEWTON OORYELL. 

